jackson



(No Model.)

E. B. JACKSON.

WRENCH.

No. 330,835. Patented Nov. 17, 1885.

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@f2/QW@ NITED STATES PATENT Fries,

EDGAR B. JACKSON, OF DELAWARE, OHIO, ASSIGNOR OF ONEHALF TO LOUIS B. JACKSON, OF SAME PLAGE.

WRENCH.

:EBPEGIFICATION forming part of Letters Patent No.330,835, dated November 17, 1885.

Application filed January 14, 1885. Serial No. 152,823. (N o model.)

To all whom it may concern.-

Be it known that I, EDGAR B. J AoxsoN, of the city of Delaware, county of Delaware, and State of Ohio, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches for carriages and other vehicles, the object of the invention being to provide a wrench which shall be simple and cheap in construction, and which may be readily adj usted to different-sized nuts.

My invention consists in a wrench the handle of which is provided at one end with a jaw formed integral therewith and extending out at right angles thereto, an adjustable jaw being pivoted to the said fixed jaw, in combination with a thumb-screw extending through the handle of the wrench and having ahead loosely seated in a groove in the lower portion ofthe adjustable jaw, whereby the same may be tipped more or less to bring the upper ends of the jaws close together around a nut, substantially as hereinafter described.

It also consists in a wrench the handle of which is hook-shaped at one end and having a jaw at the opposite end formed integral therewith and extending out at right angles thereto, said jaw being of a shape in crosssection corresponding to the shape of two sides of a nut, and being provided with two ears at the base, to which is pivoted a jaw of like shape, said pivoted jaw having at its base an elongated ball-socket opening to receive the ball-shaped head of an adjusting-screw which extends through the handle, the free or outer end of said screw being provided with the usual thumb-piece or ears, said screw being adapted to regulate the adjustment of the pivoted jaw with relation to the fixed jaw, substantially as and for the purpose hereinafter described.

It also consists in an improved. handle for wrenches provided with a jaw integral therewith, and having a jaw pivoted to said fixed jaw, and means to tip one jaw with relation to the other to adapt the wrench to nuts of different sizes, the said handle being hook-shaped at one end and being provided with a holdingpin extending out at right angles thereto at a point central, or substantially so, between opposite ends, for the purpose and substantially as hereinafter described.

It also consists in certain details of construction, hereinafter set forth.

Figure l represents in perspective a wrench constructed in accordance with my invention; Fig. 2, a longitudinal section of the same, and Fig. 3 details of the adjustable jaw.

In this my invention the wrench, which is especially adapted for carriage or vehicle purposes, is constructed in three metallic parts. The handle A, of suitable metal, is provided at one end with a jaw, B, formed integral therewith, the said jaw B being of a shape in cross-section to correspond to the shape of two sides of a square nut orbolt-head,. and extending out at right angles to the handle. At the base of jaw B, at either side thereof, are ears C, said ears being flush with the sides of the handle, and extending out from jaw B in the direction of the length of the handle A. Pivoted between and to the said ears O, as shown at b', is a jaw, D, corresponding in shape, or substantiallyv so, to the shape of jaw B, said jaw having at its upper inner edge a bitingflange,7 d', and being provided at its base, which is slightly beveled or inclined, as shown, with an elongated cylindrical slot, E,said slot having a central opening or neck extending through the metal in the direction of its length of lesser diameter than the diameter of its main or central portion, and being open at one end to permit the entrance of the roundheaded end f of an adjusting-screw, F,which screw extends through a screw-threaded hole in the metallic handle A at a point below the adjustable jaw D. This adjusting-screw Fi will extend through the handle A at an angle thereto corresponding, preferably, to the angle of the adjustable jaw D when in its extreme forward position. The handle of the wrench will be hook-shaped at one end, as at G, as a convenience in hanging the wrench up when not in use, and is provided witharound metallic holding-pin, H, extending out from the handle at a point nearly central between its ends, the said pin H forming a central holding-piece, and permitting the wrench to be readily revolved, after the nut has been started, to complete the removal of said nut.

IOO

The utility of the holding-pin H, which forms, when engaged by the hand, the axis of revolution for the wrench, will be obviously apparent, as it permits the Wrench to be more quickly revolved, thereby accelerating the removal of the nut, and prevents all liability of the wrench falling from the hand when the nut becomes detached.

The operation of my improved wrench is as follows, viz: The jaws B and D are set in position around the nut to be removed, and the adj usting-screw F is turned until the jaws tightly grasp the nut, the adjustable jaw D being tipped forward by means of said screw until the biting flange or edge d thereof sinks through any accumulated dirt or grease upon and secures a good grip upon the nut, after which the handle A is turned until the nut is started or loosened, when the holding -pin H is grasped and the wrench revolved thereby until the nut drops off, the hold upon said pin H preventing the falling` of the wrench from the hand. The wrench maythen be hung up by means of its hook until needed to replace the nut. By providing the adjustable jaw D with a biting-liange, d', at its upper inner edge I am enabled to secure a better grip upon the nut, the biting-flange cutting through any dirt or grease upon the nut and preventing the wrench or its jaws from slipping oft'. A flange, J, of sufficient height will be provided, extending from one to the opposite ear C, in front of the f-djustable jaw D, said frange incasing the said jaw and preventing dirt from entering.

I dv not desire to limit myself to the exact shape of jaws herein described, as many different shapes might be used to suit differentshape nuts.

I claim- 1. A wrench consisting of a handle hookshaped at one end and provided with a jaw at its opposite end, integral with and extending ont at right angles, or substantially so, to said handle, and preferably V-shaped in crosssec tion, a jaw pivoted to said fixed jaw, a screw extending through the handle and engaging the pivoted jaw to adjust the jaws with relation to each other, and a holding-pin located between the ends of the handle and projecting out therefrom, substantially as shown and described.

2. In a wrench, the metallic handle A, provided with the jaw B, forming a part thereof and extending out at right angles thereto, said jaw B beingvprovided with ears G at its base, to which is pivoted the adjustable jaw D, having a slot in its base to receive and hold a headed end of the adjusting-screw F, which screw extends through the metallic handle, as shown, and by which the jaw Dmay be tipped more or less to bring it and the jaw B more or less close together, the said jaws being of a shape in cross-section to correspond to the shape of two sides of a nut, substantially as described.

3; A wrench consisting of the handle A, of metal, hook-shaped at one end, as shown, and being provided with a holding-pin, H, eX- tending out therefrom at a point nearly central between its ends, the jaw B, formed integral with the said handle, the jaw D, pivoted to the jaw B, as shown, and provided at its base with the elongated slot E, open at one end, as described, and the adjustingscrew F, provided with the round-headed end F', to engage the slotted jaw D, and by which the said jaw may be tipped more or less with relation to the jaw B, to adapt them to fit and tightly clamp nuts of different sizes, substantially as and for the purpose set forth.

4. A wrench having a nut-grasping jaw formed integral with the handle, in combination with the pivoted jaw D, provided with a biting-flange, d', at its upper inner edge, and the adjusting-screw F, adjustably connected tothe said jaw D, said adjusting-screw being adapted to tip the jaw D more or less with relation to the jaw B to grasp a nut, substantially as set forth.

In witness whereof I have hereunto set my hand and seal, at Springfield, Ohio, this 17th day of December, A. D. 1884:.

N. E. C. VHITNEY, P. J. CLEVENGER. 

